Patents
Patents for H03K 17 - Electronic switching or gating, i.e. not by contact-making and -breaking (53,158)
07/1997
07/08/1997US5646520 Methods and apparatus for sensing currents
07/08/1997US5646514 AC/DC converter using a non-latch type switching device
07/03/1997WO1997023989A1 An automatic subscriber callback system
07/03/1997WO1997023987A1 A telephone equipment protection circuit
07/03/1997WO1997023985A1 Modem loop current detect system to detect an off-hook condition in an extension telephone
07/03/1997WO1997023984A1 A telephone switch hook interface circuit
07/03/1997WO1997023955A1 Voltage controlled crystal oscillator and loop filter
07/03/1997WO1997023954A1 Electrical isolation between ir receiver and further electronic circuits
07/03/1997WO1997023840A1 Fault detection and modification circuit
07/03/1997WO1997023820A1 A reset circuit for ensuring proper reset when used with decaying power supplies
07/03/1997DE19654295A1 Noise suppression control circuit especially for shot noise
07/03/1997DE19635261A1 Integrated soft=start pulse width modulation power supply circuit
07/02/1997EP0782310A2 Terminal device, E.G. pocket telephone
07/02/1997EP0782307A2 Display device for a portable telephone
07/02/1997EP0782268A2 Supply voltages switch circuit
07/02/1997EP0782267A2 Semiconductor switch
07/02/1997EP0782266A1 Pulse power converter suitable for generating high current pulses of short duration
07/02/1997EP0782265A1 Method and device for protecting an adjustable impedance element controlling the supply of an electric motor, particularly of a motor vehicle
07/02/1997EP0782251A1 Detector with automatic bias control of a PIN photodiode
07/02/1997EP0782235A1 Protection method for power transistors, and corresponding circuit
07/02/1997EP0781980A1 Pulse generator
07/01/1997US5644259 Reset circuit and integrated circuit including the same
07/01/1997US5644252 Driver for interfacing integrated circuits to transmission lines
07/01/1997US5644175 For coupling a source to a load through a junction
07/01/1997CA2116394C Gate power supply circuit
06/1997
06/26/1997WO1997022915A1 Pulse-width modulated circuit with improved linearity
06/26/1997DE19548612A1 Analogue electronic switch for temporary coupling several terminals
06/25/1997EP0780984A1 Output circuit and electronic device using the circuit
06/25/1997EP0780982A1 Complementary clock system
06/25/1997EP0780981A2 Evaluation circuit for a touch sensor
06/25/1997EP0780980A2 Actuator comprising at least one optoelectronic key
06/25/1997EP0780979A2 Actuator comprising at least one optoelectronic key
06/25/1997EP0780978A2 Electrical switching device
06/25/1997EP0780865A1 Touch sensitive device
06/25/1997EP0780752A1 Improvements in or relating to control circuits
06/25/1997EP0780036A1 Automatic power interrupting apparatus for an electric appliance
06/24/1997US5642321 Voltage level detection circuit
06/24/1997US5642273 Resonant snubber inverter
06/24/1997US5642252 Insulated gate semiconductor device and driving circuit device and electronic system both using the same
06/24/1997US5642109 For sensing an electrical signal upon receipt of an input force
06/24/1997US5642083 High-frequency switch
06/24/1997US5642065 Zero-voltage switching circuitry, as for use in resonant inverters
06/24/1997US5642063 Current-saving detection for input signal level exceeding a threshold value
06/24/1997US5642035 Transfection high-voltage controller
06/24/1997US5642001 Overdrive circuit
06/19/1997WO1997022181A1 Circuit configuration for driving a pulse output stage
06/19/1997DE19546663A1 High power, high voltage converter
06/18/1997EP0779712A1 Microcontroller for a household appliance
06/18/1997EP0779711A2 A timer circuit
06/18/1997EP0778954A1 Proximity switch with magnetic field-sensitive sensor
06/18/1997CN1035222C Gate drive circuit for voltage-driven type power switching device
06/17/1997US5640348 Non-volatile semiconductor memory
06/17/1997US5640344 Programmable non-volatile bidirectional switch for programmable logic
06/17/1997US5640300 Interrupter circuit with MCTS and pulse resonant commutation for rapidly switching off kilo-AMP AC load currents
06/17/1997US5640293 High-current, high-voltage solid state switch
06/17/1997US5640111 Pulse voltage doubler circuit
06/17/1997US5639680 Method of making analog multiplexer cell for mixed digital and analog signal inputs
06/17/1997CA2024634C Self-powered scr gate drive circuit with optical isolation
06/12/1997WO1997021271A1 Fail-safe timer circuit and on-delay circuit using the same
06/12/1997WO1997021241A2 Method of driving a field effect transistor
06/12/1997WO1997021208A1 Multiplexer circuit
06/12/1997WO1997015952A3 An integrated cmos circuit
06/12/1997DE19639873A1 Integrated circuit for driving MOS gated power semiconductor devices
06/12/1997DE19545864A1 Rescue vest, useful esp. in avalanches by skiers and climbers
06/12/1997DE19545558A1 Verfahren zur Ansteuerung eines Feldeffekttransistors Method for driving a field effect transistor
06/12/1997DE19538575A1 Inductive proximity sensor with high switching speed
06/11/1997EP0778671A2 High-frequency switch
06/11/1997EP0778670A1 Current switching circuit for an inductive load
06/11/1997EP0777939A1 Aerial switch for wireless aerial diversity telecommunications devices with two aerials
06/11/1997EP0777934A1 Proximity switch insensitive to interfering fields
06/11/1997EP0777931A1 Phase controlled bridge
06/11/1997EP0777879A1 Equivalent circuit for several functional units
06/11/1997EP0695250B1 Circuit for triggering warning lamps
06/11/1997EP0612292B1 Vehicle steering wheel
06/11/1997CN2256195Y Human body inducting electronic ignition controller
06/11/1997CN2256194Y Magnetic coding inductive range switch
06/11/1997CN1151816A Thyristor power control circuit
06/10/1997US5638330 Low dissipation initialization circuit, particularly for memory registers
06/10/1997US5638246 Semiconductor device having a protection circuit, and electronic system including the same
06/10/1997US5638060 System switch device
06/10/1997US5638012 Write driver circuit
06/10/1997US5638011 Digital to analog converter (DAC) current source arrangement
06/10/1997US5637990 For controlling supply of electrical power to a load
06/10/1997US5636729 Piezo switch
06/05/1997WO1997020390A1 A bus driver circuit configured to partially discharge a bus conductor to decrease line to line coupling capacitance
06/05/1997WO1997020389A1 Low voltage logic circuit
06/05/1997DE19649881A1 Position converter for determining present position of moving object on track for acoustic piano
06/05/1997DE19641840A1 Treiberschaltung für Hochleistungs-Halbleiterbauteile mit MOS-Gatesteuerung Driving circuit for high-power semiconductor components with a MOS gated
06/05/1997DE19609078C1 Threshold logic circuit using neuron transistors
06/04/1997EP0777327A1 Push button switch for household appliances
06/04/1997EP0776498A1 Protected keyboard device
06/04/1997EP0708939B1 Optimization circuit
06/04/1997CN2255697Y AC. trigger electronic automatic controller
06/04/1997CN2255696Y Driving circuit for simple high-efficiency isolation-type insulated gate high-power device
06/04/1997CN1035090C Switching transistor circuit arrangement
06/03/1997US5636114 Lossless snubber circuit for use in power converters
06/03/1997US5636097 For protection against an increase in output current for integrated circuits
06/03/1997US5635868 Power transistor current limiter
06/03/1997US5635867 High performance drive structure for MOSFET power switches
06/03/1997US5635853 Inherently balanced voltage regulation and current supply for bus termination